The pigs with allograft were divided into 5 groups according to the different immunosuppressive regimens. Acute rejection of allograft occurred in animals not treated with immunosuppressive agents or treated with low dose of cyclosporine (CsA). There was no rejection developed in the pigs treated with high dose CsA or low dose CsA and tripterygium wilfordii (TW). No evidence of chronic rejection was detected in animals with continued administration of TW after living longer than 100 days when the immunosuppressive treatment was discontinued. A woman with enterocolitis, ileus and short-gut syndrome received a complete cadaveric small bowel transplantation in march 12, 1994. The graft had 6 minutes for warm ischemia and 9 hours and 45 minutes for cold ischemia. The immunosuppressive therapy consisted of CsA, TW and methylprednisolone. The patient is alive and the function of graft is normal.